ECHOExploratory Compendium of Humanity Online

Stack Exchange — es.stackoverflow.com

AnalyzedMediumgraphtextStack ExchangeAcademicEngagementKnowledge sharingQ&ASocial graphSoftware development

A Stack Exchange (es.stackoverflow.com) dataset of 65,529 users, 162,745 answer-collaboration edges, 195,926 questions, 213,634 answers, collected by Stack Exchange, Inc. via the annual Stack Exchange Data Dump. Each record contains user nodes (reputation, badge counts, vote history), directed weighted edges (answerer→asker, weight=answer score, count=interactions, accepted=bool), post text, tag distribution. User collaboration network from es.stackoverflow.com — directed weighted graph where edges represent knowledge-sharing relationships (A answered B's question), with edge weight reflecting answer quality. Enables prestige hierarchy, community detection, and expertise flow analysis.. Suitable for expertise network analysis, reputation systems, community detection, knowledge flow, PageRank-based authority ranking, Q&A platform dynamics..

#Programming#Reputation#Spanish language#Stack exchange data dump#Stack overflow en espanol

Cite this dataset at stackexchange-es-stackoverflow-com.echo.directory

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Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 65,529 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

65.5K
Nodes
162.7K
Edges
3.79e-05
Density
1.6K
Components
-0.0803
Assortativity
0.3%
Reciprocity
33.6K
Bridges
Most central nodes
26330.0042
59970.00388
299670.00369
225840.00353
383040.00333
139380.00304
958580.00288
847380.00279
185970.00253
252430.00252
Content metrics

409,560 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

scoreμ 0.917 ± 2.174
min -28max 235
view countμ 582.422 ± 3.9K
min 0max 512.2K
answer countμ 0.522 ± 0.811
min 0max 15
comment countμ 1.7 ± 2.405
min 0max 37
13.8
Flesch–Kincaid grade
US school grade level
16.0
Automated readability index
Frequent terms
classdivandroidstringnewpublicintfunctionvardatosreturnthisjavanameerrorcódigoampphpnombredatatexttypevoidforvaluetruenullejemplovalorinputhtmlformpuedesselectproblemascriptusuariofalseelsesystemarchivofrombuttonimportprivateclasearraygetthefunción
Topic clusters

Topic 0

sql
tabla
datos
que
select
base
una
consulta

Topic 1

amazon
core
flask
windows
internet
material
forge
asm

Topic 2

background
color
css
imagen
que
modal
width
border

Topic 3

python
que
para
archivo
carpeta
con
los
por

Topic 4

json
ajax
function
var
datum
success
que
post

Topic 5

cómo
una
con
qué
por
que
puedo
cambiar

Topic 6

fecha
date
fechas
formato
calendar
yyyy
datetime
día

Topic 7

android
textview
listview
view
public
xmlns
layout
void

Topic 8

grid
public
datagridview
new
que
private
row
end

Topic 9

android
compile
studio
sdk
que
para
dispositivo
con

Topic 10

model
django
import
class
que
file
modelo
def

Topic 11

array
número
double
que
numero
int
los
valor
Show all 20 topics

Topic 12

variable
valor
que
función
var
javascript
una
por

Topic 13

servidor
que
web
socket
para
cliente
los
por

Topic 14

página
que
pagina
una
rewriterule
rewritecond
con
web

Topic 15

angular
angularjs
function
scope
token
que
para
var

Topic 16

git
commit
repositorio
rama
cambios
que
branch
los

Topic 17

let
func
swift
nil
uitableview
que
override
constraint

Topic 18

int
char
string
include
return
namespace
void
que

Topic 19

lista
que
display
una
elemento
value
pdb
arraylist
Top hashtags
#include1.6K
#define310
#fff301
#ffffff245
#ecg218
#000000206
#menu116
#000115
#mymodal109
#clients105
#1103
#294
#endif84
#ccc82
#example75
#container67
#header59
#resultado58
#357
#ifndef57

Sampled: text metrics from 50K of 1.3M records; topic model from 20K.

Record

Catalog key
stackexchange-es-stackoverflow-com
Authors
Stack Exchange, Inc.
Year
2025
Source paper
Stack Exchange Data Dump
License
CC BY-SA 2.5 / 3.0 / 4.0 (by post date) (CC-BY-SA-2.5 AND CC-BY-SA-3.0 AND CC-BY-SA-4.0)
Records
1,308,226
Nodes
65,529
Edges
162,745 (directed)
Nodes are
user (Stack Exchange account)
Edges are
answer collaboration (A answered B's question)
Attributes
nodes have attributes; edges have attributes
Text corpus
question titles, post bodies, comment text, tag names
Languages
es
Collected
2015/2024 (2010s, 2020s)
Tasks
From the graph: link prediction, community detection
Region
Europe, Latin America (inferred: from the language of the data)

Provenance

Originally published at
https://archive.org/download/stackexchange link checked
Hosted copy
Mirrored on echo.directory on 2026-10-09, 503.6 MB across 1 files. Checksums in MANIFEST.json.

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@misc{stackexchange_2025,
  title     = {Stack Exchange Data Dump},
  author    = {{Stack Exchange, Inc.}},
  year      = {2025},
  publisher = {Internet Archive},
  url       = {https://archive.org/download/stackexchange}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Stack Exchange, Inc. (2025). Stack Exchange — es.stackoverflow.com [Data set]. https://stackexchange-es-stackoverflow-com.echo.directory/

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Stack Exchange, Inc. Stack Exchange — es.stackoverflow.com. 2025, stackexchange-es-stackoverflow-com.echo.directory/.

BibTeX · RIS · CSL-JSON

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